结果表明:采伐降低了森林细可燃物的载量,但不同采伐方式之间没有明显的差别;
Results show that forest harvesting could decrease fine fuel loads, but no significant difference occurs among various harvesting modes.
对林相破碎、生产力低的林分加大抚育力度,提高林分质量和效益,同时调整采伐方式。
Measurement is made to forbid cutting, to enforce the plantation, to increase the forest quality and benefit, and adjust the cutting methods.
结果表明:立地条件的差异和疫木不同采伐方式对植物群落次生演替的进程和方向都有不同程度的影响。
The results show that the differences and site conditions different harvesting methods to tree secondary succession of plant communities on the process and direction have varying degrees of impact.
阐述了森林采伐中如何通过采伐方式和工艺类型的合理选择、采伐量的合理确定,来满足林业经济的持续性。
This Paper mainly introduced hoe to satisfy forestry economical duration by reasonably selecting logging ways and technology type.
杨树是山东省主要造林树种之一,确定最佳采伐周期、造林密度、混交方式,是提高生物量的关键技术。
Poplar is one of the main afforestation tree species in Shandong Provicne. Defining the best cutting period, afforestation density and mixed mode is the key technologies to promote biomass.
本文讨论了热带山地雨林采伐更新方式的生态环境因子。
The ecological factors influenced the way of cutting and regeneration of the tropical mountain rain forest was discussed.
采伐提高了森林的火险等级,择伐方式下森林的火险等级最低。
Moreover, forest harvesting could increase the fire risk class, which was the lowest under selective cutting scenario.
采伐增加了粗可燃物的载量,皆伐方式增加最明显;
Forest harvesting could increase coarse fuel loads, with the largest increase under clear cutting scenario.
结果表明,迹地清理方式对作业迹地土壤理化特性产生一定程度的影响,进而影响森林采伐后的迹地天然更新与苗木生长质量。
Through the research, it is explicit that slash disposal has also affected on the physical and chemical properties of soil on the harvested sites.
结果表明:采伐迹地的不同清理方式导致了林地肥力的较大差异。
The results show that the great differences between the soil fertility of control burning and that of non-burning are resulted by the different ground clearances.
结果表明:采伐迹地的不同清理方式导致了林地肥力的较大差异。
The results show that the great differences between the soil fertility of control burning and that of non-burning are resulted by the different ground clearances.
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